advances in technology have changed the picture. a drink of contrast solution, an idea for fluid, this is a link exactly how emilie romero would be like to spendinglike to be spending her sixth birthday it's at her first cat scan and it's likely not her last. she was diagnosed with lymphoma one year ago she undergoes routine stands to make sure that her cancer stays in check. it's the best tool that we have to do that. but the diagnostic quality images come with the price exposure to radiation something that doctors try to avoid in children. we know that children have a long time to live, their tissues are growing into rapidly turning over so the radiation effects can do more potential damage to children that they would an adult for decades manufacturers have been refining the technology just as important doctors and technicians talk about strategies to maximize a machine's potential while sparing patients excess radiation it's a practice that is part physics part human touch. we see higher and higher doses to get better quality ima